390 MODERN CLASSIFICATION OF INSECTS. 



that the meso- and metathoracic tubercles are not so large, and the 

 tubercles are provided with rather long hairs. (See also Arboretum 

 JBritannicum, p. 1483.) 



Fabricius, in his early works, detached the genus Cryptocephalus 

 from Chrysomela, and these two groups have been subsequently re- 

 garded as the types of the two subfamilies into which this family is 

 divided. In the first, Cryptocephalides, the head is vertically im- 

 mersed in the thoracic cavity, so as to cause the body to appear like 

 a cylinder, truncated in front ; the antennae being long and fili- 

 form (Cryptocephalus, &c.), or short and serrated (Clythra, &c.). In 

 the second subfamily (Chrysomelides), the head is exposed, the body 

 oval or ovoid, the antennae about half the length of the body, monili- 

 form, and slightly thickened towards the tips. 



Amongst the exotic genera are to be mentioned that of Chlamys of 

 Knoch, remarkable for its short quadrate form, and the singular ru- 

 gosity of the upper surface of the body; Eumolpus Kugellan, distin- 

 guished by the splendid metallic tints of many of the species ; Lam- 

 prosoma Kirby, and Trochalonota Westw., in which the body is almost 

 perfectly globular ; the latter, and Colaspis Fabr., having bifid ungues ; 

 Dorjphora, having the mcsosternum produced into a porrected horn ; 

 and the New Holland genus Paropsis Oliv., having strongly securiform 

 maxillary palpi. 



Sect. iv. PSEUDOTRIMERA. 



The fourth and last primary section of the Coleoptera, is the 

 PsEUDOTRiMERA ; a name which, for the reasons before stated, I 

 propose to substitute for that of Trimera of Latreille. 



In the majority of these insects, the tarsi are apparently composed of 

 only three joints, the second of which is, however, bilobed, and receives 

 between its lobes the minute third joint, which has been generally over- 

 looked, and the base of the fourth, or terminal joint (^fig.^9. 18.); the 

 antennas are generally short, and terminated by a 3-jointed club ; the 

 elytra cover the abdomen, and are never truncated at the tips. 



The habits of these insects are various ; a portion frequenting fungi, 

 and the remainder feeding upon aphides. 



Latreille divides this section into three families : the Fungicolae 

 (or Endomychidee), the Aphidiphagi (or Coccinellidae), and the 

 Pselaphii, observing that the last approach the Staphylinidas in various 



